TableOfContents

Introduction

The XBee is a wireless modem that can be used to connect MK Tools running on a laptop to the Flight or Navi Controller on the Mikrokopter. This can be useful for data logging sensor data, making real-time poti adjustments, and for conducting waypoint navigation.

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Materials

You'll need two XBee modems. They come in 3 different antenna flavors. Below are listed some modules which operate in the 900Mhz range but there are other frequencies available including 2.4Ghz.

• XBee Pro 900 RPSMA

http://www.sparkfun.com/commerce/product_info.php?products_id=9099

• XBee Pro 900 wire

http://www.sparkfun.com/commerce/product_info.php?products_id=9097

• XBee Pro 900 U.FL

http://www.sparkfun.com/commerce/product_info.php?products_id=9098

• U.FL to SMA adapter

http://www.sparkfun.com/commerce/product_info.php?products_id=9145

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You also need two XBee adapters. One needs to the the USB version, because you just plug that into your computer, and fire up MK-Tool.

You can also use the USB version for the MK end, though it's more expensive, and slightly heavier than the "regulated" version which lacks the USB and FTDI stuff. You might have to jumper across a diode on the board as well, since it doesn't play nice with the diode in place.

If you're only going to buy two adapters, I'd recommend getting two of the USB versions, since you can use them to test the XBee modems on your computer. If you want more than 2 adapters, then you could get the cheaper ones.

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• XBee USB Adapter

http://www.sparkfun.com/commerce/product_info.php?products_id=8687

• XBee "Regulated" Adapter

http://www.sparkfun.com/commerce/product_info.php?products_id=9132[http://www.sparkfun.com/commerce/product_info.php?products_id=9132

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Here is another alternate regulator for inside the MK.

http://www.droids.it/990_001.html

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Installation

Each XBee modem plugs directly onto the XBee adapter. The Xbee adapter will be used on one end to connect to the computer via USB. On the Mikrokopter side, several wires need to be soldered onto the Xbee adapter so the adapter can be connected to the Flight or Navi controller. Using a 10-pin ribbon cable like the ones included with the Mikrokopter boards will simplify the installation a great deal. If you don't have spare ribbon cable, you can add one of these to your order:

http://www.sparkfun.com/commerce/product_info.php?products_id=8535

BR The connection to the MK :

MK FC or Navi-board.....- XBee

Pin 1..........................- Pin 2 (DOUT)

Pin 2..........................- 5V connection on XBee USB adapter board

Pin 7..........................- Pin 10 (GND)

Pin 9..........................- Pin 3 (DIN)

attachment:xbee.jpg

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attachment:xbeeboard.jpg

Configuration of the Xbee modules

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Configure XBee for 57600 baud.

BR Use the XCTU program to do any configuration you need, as well as testing the XBees.

http://www.digi.com/support/productdetl.jsp?pid=3352&osvid=57&s=316&tp=5

Content Credit

Rusty (13brv3)

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